The lower-case version came first (circa 1980-1983). The all uppercase name version, later (circa 1984-1986). The earlier version could be had in various standard weights (light, light-medium, medium); IIRC, the later version only came in light weight. There are differences ebtween the two inasmuch as the pallet and grip collar are concerned, and in 1988, there was a version called the Graphite Edge 2 which featured the less dense drill pattern and bumper guard from the TXE, an anomaly only made in 1988.

There were other versions of the Graphite Edge available in Europe, too.